[Bug middle-end/107941] json diagnostics format does not include header stack info

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107941

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
diagnostic_report_current_module in diagnostic.cc is what outputs the include
stack for the text output case.